Sand-treating machine



July 3, 1928. 4 1,675,721

v. E. MlNlCH SAND TREATING MACHINE Filed April 6, 1927 s SheeEs-Sheet 1 July s, 1928. 1,675,721

v. E. MINICH SAND TREATING MACHINE Filed April 1927 s Sheets-Sheet 2 aywe'wtoz July 3, 1928.

V. E. MINICH SAND TREATING MACHINE Filed April 6, 1,927 3 Sheets-Sheet 3 I awumfloz $51 k Qblimmg 7a.

Patented July 3, 1928.

UNET ED STATES FATENTQFFICE.

n. MINIGI-I, or. see asnnrn, new "roan, essrsnon re THE AMERICAN FOUNDRY naurrlunn'r COMPANY, on NEW YORK, n. r, a ooaronarron or DELAWARE.

snn'n-rnna rrne MACHINE.

. Application filed April 6,

' This invention relates to sand treating apparatus, and more particularly, to a machine for cutting, screening and piling sand to prepare the same for use in foundries.

The invention relates more specifically to a machine of the above character, which is adapted to be movedover the floor of a foundry and to cut or disintegrate the sand or other loose material which may ,be on said floor. After being cut by the machine, the u'iaterial is propelled upwardly and out wardly and may either be passedthreugh a screen for separating the fine particles from the coarser substances, or: may be directed claims parts will be. identified by specific into a pile at the rear of the machine. If the machine is constantly moved in a forward direction the pile of sand will be'elongrated to form a row, from which workmen may remove the material for subsequent operations. I

V T he cutting, screening and piling machine is preferably of the self-propelled type, mounted upon a chassis having suitable running wheels. An operator may be seated on the chassis and control the movement of themachme over the floor of the foundry for the purpose of reconditioning sand which has previously been used in molds and leaving the same in proper condition for usein carrying on further foundry operations. I I I M The invention further relates to an adjustable screen and cutting cylinder attached to a machine of the above character, andadapted to be adjusted at the will of the operator into either operative or l]l-Op6I'2l.-. tive position. Both the screen and cutting blade are independently mounted for pivotal movement, and may be hoisted by a reel or other suitable means.

The invention further comprises a piling shroud'that is attached. to the screen and adapted to direct. abrasive material which is picked up by the cutting knives against the screen. A. vibrating mechanism may,

also be included for imparting ashaking movement to the screen for facilitating the separation of the line andcoarse particles. 1

Although the novel features which are believed to be'characteristic of this invention will be particularly pointed outin the claims appended hereto, theinvention itself, as to its objects and advantages, the mode of its operation and the nanner of its organiza tron may he better understood by referring;

1227. Serial No. 181,840.

tothe following description taken in connection with the accompanying drawings forming a part thereof, in which:

Fig. l is a side elevation of a cutting, screening andpiling machine constructed in accordance with this invent-ion; V Fig. 2 is an elevation of the screening and cutting mechanism in operative position; and I Fig. 3 is an elevation of the screening and cutting mechanism in raised position.

, Like reference characters denote like parts in theseveral figures of the drawings.

In the following description and in the names for convenience, but they. are intended to be as generic intheir application to simi- .lar parts as the art will permit.

lieferringto the rhrawings morein detail, the invention is shown as applied to a-machine of the above character, comprisin a suitable framework or chassis 10, which is mounted upon running wheels l1 to enable the same to be moved back and forth over a foundry floor. A suital'ileprin'ie mover such as a gasoline motor. (not shown) may be mounted, upon the framework 10, and enclosed, if desired, by a hood 12,- in the usual manner; -A radiator 13 mayrbe-mounted on the front of the maehineto facilitate cooling of the motor, the radiator being adapted to cool the motor either by air or water dependingupon the design thereof.

Theprime mover may be operativelyicom nected tothe driving mechanism for impelling the machine, andalso t-o'the series of reels to be hereinafter described, whichmay be utilized in raising and lowering thepiling screen and th cutting blades. Aseat 14 for the operator of the machine may be mounted onthe frame 10, if Cl6SllGCl.,"V21llOllS control levers being arranged in readily accessible positions withrespect thereto. 1

\ The particulartype of prime mover and controls. employed form no part of thepresent invention, and consequently will not be described in detail. Any suitable type of mechanism, such. is well known in the foundry art, may be employed for this purpose. I 1 1 A cutting, cylinder 20 providedvwith a series of cuttingl1ilades (not shown) may be pivotally mounted at the rear of theframe, in such mannenthat it may col'itact with the floor and the loose mater al 'tlrleifeon such Lil all)

as sand when in operative position, or may be raised into inoperative position. when the machine is to be moved from place to place Suitable mechanism and connecting means may be provided for driving the cutting cylinder 20, said means preferably being under the control of the operator, whereby they may be connected or disconnected at will. The particular type of connecting means, however, forms no part of the present invention, but is well known in the art and consequently will not be described in detail.

A screen 30 may be mounted at the rear of the cutting cylinder 20, and normally positioned in the line of projection of the material treated by saidcylinder. The screen may, however, be pivotally mounted and raised by means of a suitable hoist into in operative position whereby the tree passage of the 'inaterial being treated is not intertered with, and the same may be allowed to form a pile or row in back of the machine.

Attached to the frame 10 may be a series of vertical and horizontal members to [provide suitable supporting means for the above mentioned cutting cylinder and screen, and or the va 'ious controls for operating the same.

Cylinder may be journalled for movement in a suitable bearing 21 carried upon radial bar 22, said bar being journalled for pivotal movement about the rod 23 which is attached to the frame 01 the machine in any suitable manner. Arcuate member 24L may be secured to radial member 22, and provided with a peripheral groove to permit the insertion of hoisting cable 25. Cable 25 after passing around member 24 may be connected to reeling mechanism 26. which is carried by the frame of the machine and operpivotal movement of said screen when the same is vibrated, as hereinafter described. Piling shroud 3% and base plate 35 may be rigidly attached at the lower portion of arm, 31, wheel 36 being connected to said rod and extending below said base plate to provide a support therefor and for the screen when the same is in lowered position.

The lower portion of screen may be pivotally connected to vibrating rod 37, said rod being lflllt'llllllfll upon a support 3Q rigidly connected to base plate and to moved.

radial arm 81. A suitable-lug 38 may be connected to the end of vibrating arm 37 and positioned to contact with the cam surlace 39 carried-by cutting cylinder 20,. \Vhen cylinder 20 is rotated. cam 39 adapted. to co-operate with lug 38 and by causing a vertical movement thereof, to impart vibrations to screen 30.

The screen assembly may be raised to in operative position by means of cable 40 which any be connected to radial arm 31 and passed over pulley 41 onto reeling drum Reeling drum 4.2 may be operated by the prime mover by any suitable means under the control of the operator. hen power is applied to reeling drum 42, the entire screen assembly will be rotated about bear;- ing 32 into the position shown in F S. It the cutting cylinder is then operated the sand may be thrown directly onto a pile, or ii the cutting cylinder should also be raised is inoperative position the mach ne may be freely moved without disturbing loose material over which it may pass. 2

In the operation of the above described machine for the purpose of cutting and screening sand, both cutting cylinder wand screen 30 may be placed in lowered positio i,- as shown in Figs. l and 2, and the machiiu moyed over the surface to be cleaned or acted upon while power is applied to the cutting blades. These blades in rotating will then act upon the loose sand or other similar material, cutting the sameand dividing it into small particles, in which condition it may be propelled by said blades against screen 30, The line material will then pass tl'lrough screen 30 and be deposited upon the floor, whereas the coarse particles will be retained and fall into the lower portion of the screen, from whence they may be subsequently re- As the cutting cylinder is rotated, a vibrating movement will be imparted to the screen by means of can], 39 and lever 37 for facilitating the screening action, and for more completely separating the coarse and fine particles.

7 Should it be desired to merely cut the sand and to purify the same by aeration without screening, the screen. may be raised by means of hoisting drum 42 to the position shown in Fig. 3, while the cutting cylinder 20 may remain in operative position. hen the machine is then'passed over the floor the cutting blades will pick up the sand, and after agitating the particles will throw them through the air into a windrow at the rear of the machine, the extent of the pile depending upon the quantity of material handled.

The machine may be freely moved without treating the material by raising both cutting cylinder 20 and screen to the position shown in Fig. 3, whereby they are entirely removed from contract with the floor and preventedfrom' actingupon mas terial carriedthereby.

This inventionprovides a simple and practical method of selectively and quickly raising either the cutting cylinder or the piling screen into inoperative position with-,

out the employment of expensive mounting: or complicated -111GCl12111lS11'i. The reeling drums for the screenand cylinder may be readily operated by the prime mover of the machine, and the controls therefor placed in accessible posit ons whereby they may be instantly available to the operator of the;

/ machine.

In the drawings accompanying and form from the broad spirit and scope of the in-,

"vention as hereinafter defined and claimed.

lVhat is claimed 1s:

-ing part of this specification, a practical upon wheels formovement over a floor, a i prime mover carried by said framework for propelling thesame, a cutting cylinder mounted for rotational and transverse move ment with respect to said framework, a

hoisting cable for controlling the transverse position of said cylinder with respect to said framework, a screen pivotally mounted at the rear of said cutting cylinder and adapted to receive material impelled from said cylinder, a shroud for directing said material against said screen, a hoisting cable for controlling the position of said screen, and means for vibrating said screen.

2. A cutting, screening and piling machine contiprising a framework mounted upon wheels for movement over a floor, a prime mover carried by said framework for propelling the same, a radial arm pivotally connected at the rear thereof, a cutting cylinder mounted for rotational movement on said radial arm, a hoisting cable attached to said arm for controlling the position of said cylinder with respect to said framework, a screen pivotally mounted at the rear of said cutting cylinder and adapted to receive material impelled from said. cylinder, a shroud for directing said material against said screen, a hoisting cable for controlling the position of said screen, and means including a cam surface for vibrating said screen.

A cutting, screening and piling machine comprising a framework mounted upon wheels for movement over a floor, a prime mover carried by said framework for-propolling the same, a radial arm pivotally connected at the rear thereof, a cutting cylinder mounted for rotational moven'ient on said radial arm, an arcuate member attached to said radial arm,

said arm hoistinrr'ca ble assin around the v periphery of said arcuate member for con- :and means carried by said screen and including a cam surface for vibrating said screen.

i. A cutting, screening and piling machine comprising a framework mounted upon Wheels for movement over a floor, a primem'over carried by said framework for propelling the same,-a radial arm pivotally connected at the rear thereof, a cutting cylinder mountedfor rotational movement on arcuate member attached to said arm, a hoisting cable passing around theperiphery of saidarcuate memher forcontrolling the position of said cylinder with respect to said framework, a reeling drum, means for connecting said hoistmg cable to said reeling drum,'and means operatively connecting said reelingdrum to said prime mover for controlling the position of said cylinder, a screen 1 'pivotally n'iounted at the rear of said cuttingcylinder and adapted to receive material impelled from said cylinder, a shroud for directing said material against said screen, a hoisting cable for controlling the position of said screen, and a member carried by saidsereen and co-operating with a cam surface for vibrating said screen.

5. A cutting, screening and piling machine comprising a framework mounted upon wheels for movement over a floor, a

prime mover carried. by said framework for propelling the same, a cutting cylinder mounted for rotational and transverse movement with respect to said framework, a hoisting cable for controlling the transverse position of said cylinder with respect to said framework, a screen, means for mounting said screen at the rear of said cutting cylinder comprising a radial. rod pivotally connected to said framework and loosely connected to said screen, a shroud for di recting material against said screen, a hoist ing cable for controlling the position of said screen, and means including a cam surface for vibrating said screen. I

6. A cutting, screening and piling ma chine comprising a framework mounted upon wheels for movement over a floor,

prime mover carried by said framework for propelling the same, a cutting cylinder mounted for rotational and transverse move ment with respect to said framework, a hoisting cable for controlling'the transverse position of said cylinder with respect to said framework, a screen, means for mounting said screen at the rear of said cutting cylinder comprising a radial rod pivotally con nected to said framework and loosely connected to said screen, a shroud for directmg material against said screen, a hoisting cable attached to said radial rod, a Winding drum for reeling said cable, said drum being operatively connected to said prime mover, and means for vibrating said screen.

7. A cutting, screening and piling machine comprising a framework mounted upon Wheels for movement over a floor, a prime mover carried by said framework for propelling the same, a radial arm pivot-ally connected at the rear thereof, a cutting cylinder mounted for rotational movement on said radial arm, an arcuate member attached to said arm, a hoisting cable passing around the periphery of said arcuate member for controlling the position of said cylinder with respect to said :iramework, a reeling drum, means for connecting said hoisting cableto said reeling drum,and means operatively connecting said reelingdrum to said prime mover for controlling the position of said cylinder, a screen, means for mounting said screen at the rear of said cutting cylinder comprising a radial rod pivotally connected to said framework and loosely connected to said screen, a shroud for directing material against said screen, a hoisting cable attached to said radial rod, a Winding drum for reeling said cable, said drum being operatively connected to said prime mover, and a member carried by said screen for imparting vibrations thereto.

ber attached to said arm, a hoisting cable member for controlling the position of said cylinder With respect to said framework, a reeling drum, means for connecting said hoisting cable to said reeling drum, and means operatively connecting said reeling drum to said prime mover for controlling the position of said cylinder, a screen, means for mounting said screen at the rear of said cutting cylinder comprising a radial rod pivotaliy connected to said framework and loosely connected to said screen, a shroud for directing material against said screen, a hoisting cable attached to said radial rod, a winding drum for reeling said cable, said drum being operatively connected to said mover, a vibrating rod attached to said screen, :1 lug mounted on the free end of said member, and a cam carried by said cutting cylinder and co-operating with said lug whereby rotation of said cylinder utilized for imparting vibrations to said screen.

In testimony whereof I have hereunto set my hand.

VERNE E. lWINIOI-I;

passin around the periphery of said arcuate 

